Definition of nautiloid in English:

nautiloid

Syllabification: nau·ti·loid
Pronunciation: /ˈnôtlˌoid
 
/

noun

Zoology
  • A mollusk of a group of mainly extinct marine mollusks that includes the pearly nautilus.
    • Subclass Nautiloidea, class Cephalopoda: Nautilus is the only surviving genus
    More example sentences
    • Ammonoids are descendants of the extinct, primitive coiled nautiloids and they are extinct relatives of modern squid, octopus, cuttlefish, and nautilus.
    • Other fossil groups include diverse rugose corals, some tabulate corals, nautiloids, gastropods, and trilobites.
    • Coiled shells, commonly of ammonoid cephalopods, nautiloids, or gastropods, have been given colloquial names such as rams' horns, snakestones, serpentstones, and conger eels.

Origin

mid 19th century: from the modern Latin genus name Nautilus (from Greek nautilos 'sailor') + -oid.

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